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Finding the Fourth Proportional to 121,192.61, 167,243.81 and 70,900.13

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Solution

The fourth proportional to 121,192.61, 167,243.81 and 70,900.13 is: 97,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,192.61 : 167,243.81 = 70,900.13 : x
  2. Step 2: Convert to fraction form
    121,192.61/167,243.81 = 70,900.13/x
  3. Step 3: Cross multiply
    121,192.61x = 167,243.81 × 70,900.13
  4. Step 4: Simplify right side
    121,192.61x = 11,857,607,516.19
  5. Step 5: Solve for x
    x = 11,857,607,516.19/121,192.61
  6. Step 6: Final answer
    x = 97,841.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.